Search for dissertations about: "frozen soil"
Showing result 1 - 5 of 27 swedish dissertations containing the words frozen soil.
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1. High-resolution mapping and spatial variability of soil organic carbon storage in permafrost environments
Abstract : Large amounts of carbon are stored in soils of the northern circumpolar permafrost region. High-resolution mapping of this soil organic carbon (SOC) is important to better understand and predict local to global scale carbon dynamics. READ MORE
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2. Water, Heat and Solute processes in Seasonally frozen Soils : Experimental and Modeling Study
Abstract : Soil freezing and thawing is of importance in transport of water, heat and solute, which has coupled effects. Solute type and solute content in frozen soil could influence the osmotic potential of frozen soil and decrease freezing point, resulting in differences in soil freezing characteristic curves under various solute conditions. READ MORE
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3. Compaction and thaw deformation of frozen soil : permeability and structural effects due to freezing and thawing
Abstract : This thesis is the result of the two projects:"Deformations in winter compacted soils" and "Permeability changes in a fine-grained till due to freeze/thaw". The aim of the first project was to study whether it is possible to compact frozen soils, in road embankments etc. READ MORE
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4. Coupled processes in seasonally frozen soils : Merging experiments and simulations
Abstract : Soil freezing/thawing is of importance in the transport of water, heat and solute, with coupled effects. Due to complexity in soil freezing/thawing, uncertainty could be influential in both experimentation and simulation work in frozen soils. READ MORE
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5. Biogeochemical processes in frozen soils : unfrozen water in frozen soils and factors regulating carbon mineralization at low temperatures
Abstract : High latitude ecosystems are important for global carbon (C) balances and are among the most sensitive ecosystems to climate change. Microbial CO2 production in soil is known to proceed at temperatures < 0ºC in these regions and winter CO2 emissions can significantly affect annual C balances. READ MORE